US2858678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Room air conditioner having vent control means
Assignee: General Electric Co
•
Filing: 1956-10-15
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Granted: 1958-11-04
•
Expires: 1976-10-15
Abstract
No abstract record available.
Inventors
- 👤 Stanley E Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:44
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/70; F24F11/72; F24F11/74; F24F11/76; F24F1/00; F24F1/02; F24F1/028; F24F1/0284; F24F1/03; F24F1/031; F24F1/032; F24F1/0323
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1949640A
Cited
US2324620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |